NDLI: A photogrammetric method to evaluate nutritional status without capture in habituated free-ranging Japanese macaques (Macaca fuscata): a pilot study

Content Provider	Springer Nature Link
Author	Kurita, Hiroyuki Suzumura, Takafumi Kanchi, Fujio Hamada, Yuzuru
Copyright Year	2011
Abstract	The quantification of nutritional status (e.g., total body fat) of animals is difficult, because the linear dimension (body length) required for the calculation of proxy parameters, such as the physique or body mass indices, cannot be measured without capture. One solution is photogrammetry of body length, provided the following two criteria are met: (1) the camera axes and subject are oriented vertically, and (2) anatomical landmarks are easily identified with low measurement error. By modifying Mori’s (Primates 20:371–397, 1979) approach, we devised an accurate photogrammetric method that uses a horizontal bar with an attached ruler for the monkey to traverse, and the anatomical landmarks of the eye and upper border of the ischial callosity to measure body length. We tested the applicability of this method on 11 adult female, habituated, free-ranging Japanese macaques (Macaca fuscata). Somatometric body length (crown–rump length and anterior trunk length) was statistically compared with the body length obtained using photogrammetry. The significant correlation of the photogrammetric body length with each somatometric measurement verified that the former could be employed to calculate various indices that are used to characterize fat mass (nutritional status) in Japanese macaques. The advantages and disadvantages of photogrammetry are also discussed.
Starting Page	7
Ending Page	11
Page Count	5
File Format	PDF
ISSN	00328332
Journal	Primates
Volume Number	53
Issue Number	1
e-ISSN	16107365
Language	English
Publisher	Springer Japan
Publisher Date	2011-11-05
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Photogrammetry Somatometry Japanese macaque Body length Noninvasive method Animal Ecology Zoology Behavioural Sciences Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology

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